Troubleshooting Chart - Columbus McKinnon CM 653 Serie Manual Del Equipo

TROUBLESHOOTING CHART

symptom
Hoist is hard to operate in either direction.
Hoist is hard to operate in down direction.
Hoist is hard to operate in up direction.
SERIES 653
Possible Cause(s)
1. Load chain worn long to gauge, thus binding
between liftwheel and chain guide.
2. Load chain rusty, corroded or clogged with
foreign matter such as cement or mud.
3. Bushings clogged with matter such as cement
or dust.
4. Lever binding.
5.
Brake parts corroded or clogged with
foreign matter.
6. Liftwheel pockets clogged with foreign matter or
worn excessively causing chain to bind between
liftwheel and chain guide.
7. Liftwheel twisted or bent - gear teeth bent.
1. Brake parts corroded or clogged with
foreign matter.
2. Chain binding.
1. Chain binding.
2. Overload.
10
Corrective Action
1. Check chain, (See page 7) and replace
if worn excessively.
2. Clean chain by tumble polishing or using a
non-acid or non-caustic type solvent. Check
chain for gouges, damaged or bent links.
Lubricate with Lubriplate ® Bar and Chain Oil
10-R (Fiske Bros. Refining Co.) or equal lubricant.
3. Disassemble and clean liftwheel bushings and
bushings in gear cover and side plate (gear side).
Any parts worn excessively should be replaced.
4. Clean by removing any foreign matter which may
be between the lever and the brake cover.
5. Disassemble brake and clean thoroughly (by
wiping with a cloth - not by washing in a solvent).
Replace ratchet assembly if too gummy, worn or
scored. Keep brake surfaces clean and dry.
6. Clean out pockets and use if not worn excessively.
Replace liftwheel if pockets are worn.
7. Excessive overload had been applied.
Replace damaged parts.
1. Disassemble brake and clean thoroughly (by
wiping with a cloth - not by washing in a solvent).
Replace ratchet assembly if too gummy, worn or
scored. Keep brake surfaces clean and dry.
2. Check chain, (See page 7) and replace if worn
excessively. Clean chain by tumble polishing or
using a non-acid or non-caustic type solvent.
Check chain for gouges, damaged or bent links.
Lubricate with Lubriplate Bar and Chain Oil 10-R
®
(Fiske Bros. Refining Co.) or equal lubricant.
1. Check chain, (See page 7) and replace if worn
excessively. Clean chain by tumble polishing or
using a non-acid or non-caustic type solvent.
Check chain for gouges, damaged or bent links.
Lubricate with Lubriplate Bar and Chain Oil 10-R
®
(Fiske Bros. Refining Co.) or equal lubricant.
2. Reduce load or use correct capacity unit.
P/N 53855 (653-D) Rev AA may 2015